aiogram/aiogram/utils/imports.py
2019-12-12 00:28:37 +02:00

23 lines
746 B
Python

import importlib
from typing import Any
def import_module(target: str) -> Any:
if not isinstance(target, str):
raise ValueError(f"Target should be string not {type(target).__class__.__name__}")
module_name, _, attr_name = target.partition(":")
if not module_name or not attr_name:
raise ValueError(f'Import string "{target}" must be in format "<module>:<attribute>"')
try:
module = importlib.import_module(module_name)
except ImportError:
raise ValueError(f'Could not import module "{module_name}".')
try:
attribute = getattr(module, attr_name)
except AttributeError:
raise ValueError(f'Module "{module_name}" has no attribute "{attr_name}"')
return attribute